An L-Shaped Slot Circularly Polarized Patch Antenna for Wireless Communication

M.Saravanan

Department of Electronics and Communication Engineering, Hindustan Institute of Technology and Science, Chennai, Tamilnadu, and India
*Corresponding Author: M. Saravanan, Email: [email protected]

A circular-polarized patch antenna with compact size operating at 2.3 GHz band is presented. The antenna utilizes L shaped slot in the radiator in order to achieve circularly polarized radiation pattern. The prototype of the antenna is fabricated and is fed by a 50Ω strip line. The antenna achieves a symmetrical radiation pattern around zenith.  The measured impedance bandwidth of |S11| less than -10dB is from 2.3GHz to 2.35GHz and is in good agreement with simulation results. The antenna achieves better cross-polarization isolation of -19 dB and wider 3dB axial ratio beamwidth (ARBW) of -50^‍o≤ARBW≤45^‍o at its resonating frequency. The antenna finds application in modern wireless communication system.

Antenna feeds; Antenna radiation patterns; Circular polarization; Microstrip antennas; Slot antennas

M.Saravanan (2020). An L-Shaped Slot Circularly Polarized Patch Antenna for Wireless Communication. Journal of the Institute of Electronics and Computer, 2, 1-11. https://doi.org/10.33969/JIEC.2020.21001.

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